[GFXjamie]

I would stick with a lower ratio. 3.41 or 3.82 (stock) so that way you aren't running out of gears. Unless you plan on some massive tire it will hurt you being boosted. Go for the gear set, it will make a good different for those gears.

If you can get a 3.41 which was from the pzev focus, it will stretch out the car and have it stay in power longer and reduce wheel spin in lower gears. It effectively reduces your mechanical advantage from the 3.82 but that's not a bad thing.